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1 /* |
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2 * Copyright (c) 2010 Ixonos Plc. |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of the "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - Initial contribution |
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11 * |
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12 * Contributors: |
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13 * Ixonos Plc |
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14 * |
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15 * Description: |
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16 * Definition for CDataProcessor, the data processing object abstract |
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17 * base class. |
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18 * |
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19 */ |
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20 |
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21 |
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22 |
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23 #ifndef __DATAPROCESSOR_H__ |
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24 #define __DATAPROCESSOR_H__ |
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25 |
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26 |
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27 // INCLUDES |
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28 |
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29 #ifndef __E32BASE_H__ |
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30 #include <e32base.h> |
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31 #endif |
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32 |
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33 |
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34 // FORWARD DECLARATIONS |
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35 |
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36 //class MVideoPlayerObserver; |
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37 |
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38 |
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39 // CLASS DEFINITIONS |
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40 |
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41 class CDataProcessor : public CActive |
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42 { |
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43 public: // constants |
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44 enum TErrorCode |
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45 { |
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46 EInternalAssertionFailure = -1100 |
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47 }; |
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48 |
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49 public: // new functions |
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50 // Constructors |
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51 CDataProcessor(TInt aPriority=EPriorityStandard); |
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52 void ConstructL(); |
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53 |
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54 // Destructor |
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55 virtual ~CDataProcessor(); |
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56 |
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57 // Called by CActiveQueue when input data is available |
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58 virtual void InputDataAvailable(TAny *aUserPointer); |
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59 |
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60 // Called by CActiveQueue when output space is available |
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61 virtual void OutputSpaceAvailable(TAny *aUserPointer); |
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62 |
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63 // Called by CActiveQeueue after all data has been read from a queue where |
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64 // stream end has been signaled |
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65 virtual void StreamEndReached(TAny *aUserPointer); |
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66 |
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67 // Standard active object RunL() method, overridden by derived class |
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68 virtual void RunL() = 0; |
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69 |
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70 // Cancels the internal request |
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71 virtual void DoCancel(); |
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72 }; |
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73 |
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74 |
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75 |
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76 #endif // __DATAPROCESSOR_H__ |
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77 |
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78 // End of File |